US10518564B2 - Air filter and image forming apparatus incorporating same - Google Patents
Air filter and image forming apparatus incorporating same Download PDFInfo
- Publication number
- US10518564B2 US10518564B2 US16/123,097 US201816123097A US10518564B2 US 10518564 B2 US10518564 B2 US 10518564B2 US 201816123097 A US201816123097 A US 201816123097A US 10518564 B2 US10518564 B2 US 10518564B2
- Authority
- US
- United States
- Prior art keywords
- image forming
- forming apparatus
- air
- ejection
- air filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 235000019645 odor Nutrition 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/377—Cooling or ventilating arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/02—Framework
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/12—Guards, shields or dust excluders
- B41J29/13—Cases or covers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00909—Cleaning arrangements or preventing or counter-acting contamination from dust or the like
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
Definitions
- aspects of the present disclosure generally relate to an air filter and an image forming apparatus incorporating the air filter.
- An image forming apparatus such as a multifunction peripheral or a printer includes a device that removes odors and chemical emissions such as ozone and dust, which are generated during use.
- This specification describes an improved air filter for an image forming apparatus that includes a housing including an air intake part and an air exhaust part, a fan disposed in the housing to form an air flow from the air intake part to the air exhaust part, and a filter disposed in the housing to filter the air flow.
- the fan draws air in a suction direction along an ejection direction of a sheet ejected from an ejection port in the image forming apparatus.
- FIG. 1 is a perspective view of an image forming apparatus with an air filter according to an embodiment of the present disclosure installed;
- FIG. 2 is a perspective view of an example of the air filter
- FIG. 3 is an exploded perspective view of the air filter illustrated in FIG. 2 ;
- FIG. 4 is a top view of the image forming apparatus with the air filter illustrated in FIG. 1 installed;
- FIG. 5 is a cross-sectional view of the air filter illustrated in FIG. 2 ;
- FIG. 6 is a cross-sectional perspective view of the air filter illustrated in FIG. 2 ;
- FIG. 7 is a right-side view of the image forming apparatus with the air filter illustrated in FIG. 1 installed;
- FIG. 8 is a right-side view of the image forming apparatus in which a first cover is opened
- FIG. 9 is a right-side view of the image forming apparatus in which a second cover is opened.
- FIG. 10 is a perspective view illustrating a state in which the air filter is installed to the image forming apparatus including a scanner.
- FIG. 1 illustrates an image forming apparatus installed with an air filter according to an embodiment of the present disclosure.
- the image forming apparatus 500 includes an image forming apparatus body 510 and an air filter 100 installed in the image forming apparatus body 510 .
- the image forming apparatus body 510 includes an ejection port 511 to eject a sheet that is a recording medium on which an image is formed toward a sheet ejection space 520 in which the sheet is stacked.
- the image forming apparatus body 510 includes a first cover 512 at an upper portion of the image forming apparatus body 510 that, when opened, allows access to an interior of the image forming apparatus body 510 .
- the image forming apparatus body 510 includes a second cover 513 disposed on the back of the image forming apparatus body 510 that allows access to the interior of the image forming apparatus body 510 .
- the image forming apparatus 500 is an image forming apparatus, such as a printer, including no scanner.
- the direction (hereinafter, X direction) indicated by arrow X represents the lateral direction of the image forming apparatus 500 , that is, the width direction of the sheet ejected from the ejection port 511
- the direction (hereinafter, Y direction) indicated by arrow Y represents the front-back direction of the image forming apparatus 500 , that is, an ejection direction of a sheet in which the sheet is ejected from the ejection port 511 .
- the side on which a control panel is provided is the front of the image forming apparatus 500 .
- the direction (hereinafter, Z direction) indicated by arrow Z represents the vertical direction of the image forming apparatus 500 .
- the air filter 100 includes a housing 10 to form an airflow path.
- the housing 10 includes an air intake part 11 forming an intake to take in air into the housing 10 and an air exhaust part 12 forming an exhaust port to expel the air to the outside of the housing 10 .
- the air filter 100 includes a fan 20 disposed in the housing 10 to form an air flow from the air intake part 11 to the air exhaust part 12 .
- the air filter 100 includes a filter 30 to pass the air flow and filter the air in the air flow.
- the air filter 100 includes a cover 40 disposed on the housing 10 to form an air flow from the ejection port 511 to the air intake part 11 .
- the air filter 100 is an external device that can be attached to and detached from the image forming apparatus 500 .
- the air filter 100 is mounted on the image forming apparatus body 510 to occupy the position in which the air intake part 11 draws exhaust air from the ejection port 511 and air in the sheet ejection space 520 when the fan 20 is driven.
- a suction direction of the fan 20 is along the same direction as the ejection direction of the sheet ejected from the ejection port 511 .
- a state in which the suction direction of the fan 20 is along the ejection direction does not mean that the suction direction is perfectly parallel to the ejection direction and includes fluctuation due to turbulence in the air flow.
- a rotational plane of the fan 20 and an opening surface of the ejection port 511 are oriented in the Y direction.
- the housing 10 is disposed above the ejection port 511 , that is, downstream from the ejection port 511 in the Z direction and upstream from the ejection port 511 in the Y direction.
- the position in which the air filter 100 is disposed does not hamper sheet ejection from the ejection port 511 and a user operation in which the user of the image forming apparatus 500 removes the ejected sheet.
- the air filter 100 may be fixed on the image forming apparatus 500 by a surface fastener such as an adhesive tape or a Magic Tape (registered trademark) or a structural element such as a screw or a claw.
- a surface fastener such as an adhesive tape or a Magic Tape (registered trademark) or a structural element such as a screw or a claw.
- the air intake part 11 has a rectangular shape, and the X direction is a longitudinal direction of the air intake part 11 .
- a direction of the air flowing through the air intake part 11 is along the ejection direction of the sheet.
- a state in which the direction of the air flowing through the air intake part 11 is along the ejection direction of the sheet does not mean that the direction of air flowing is perfectly parallel to the ejection direction, and includes fluctuation due to turbulence in the air flow.
- the opening surface of the air intake part 11 and the opening surface of the ejection port 511 are oriented in the Y direction.
- the rotational plane of the fan 20 and the opening surface of the air intake part 11 are oriented in the Y direction, but the opening surface inclined within 45 degrees with respect to the rotational plane of the fan 20 can obtain sufficient intake capability.
- the exhaust part 12 includes slits 12 a .
- the air drawn into the housing 10 from the air intake part 11 by the fan 20 is exhausted upstream in the Z direction from the slit 12 a , that is, downward.
- the fan 20 is disposed at a position corresponding to a central portion of the air intake part 11 in the X direction in the housing 10 .
- the fan 20 is disposed between the air intake part 11 and the air exhaust part 12 .
- the intake part 11 , the fan 20 , and the air exhaust part 12 are arranged in this order from the downstream side to the upstream side in the Y direction.
- the fan 20 includes an electric fan motor. When the fan 20 is turned on, the fan 20 draws air from the air intake part 11 into the housing 10 and exhausts the air from the air exhaust part 12 to the outside of the housing 10 .
- the fan 20 includes a conducting wire connector 21 that electrically connects the fan 20 and a board in the image forming apparatus 500 . Via the conducting wire connector 21 , power is supplied from the image forming apparatus 500 to the fan motor.
- a central processing unit (CPU) on the board controls the power supplied to the fan 20 to supply the power during image formation.
- the power may be supplied from an image data input terminal such as a universal serial bus (USB) terminal of the image forming apparatus 500 to the fan motor.
- an image data input terminal such as a universal serial bus (USB) terminal of the image forming apparatus 500 to the fan motor.
- USB universal serial bus
- a battery type or rechargeable fan motor may be used to drive the fan 20 .
- the filter 30 is disposed in the air intake part 11 . As illustrated in FIG. 4 , the filter 30 is provided side by side along the Y direction together with the air intake part 11 , the fan 20 , and the air exhaust part 12 .
- the filter 30 may be changed into any type of filter, such as an odor filter, an ozone filter, a volatile organic compound (VOC) filter, or a particulate filter, depending on the intended use.
- odor filter such as an odor filter, an ozone filter, a volatile organic compound (VOC) filter, or a particulate filter, depending on the intended use.
- OVOC volatile organic compound
- the cover 40 is detachable from the housing 10 . As illustrated in FIG. 3 , the cover 40 includes a connecting portion 42 such as a hook portion and a claw, and is integrated with the housing 10 by fitting the connecting portion 42 into the housing 10 .
- a connecting portion 42 such as a hook portion and a claw
- the cover 40 has a plurality of ribs 41 , each extending in the Y direction, aligned in the X direction on a surface of the cover 40 facing a path of the air flow.
- the ribs 41 are arranged with intervals corresponding to the sizes of sheets used in the image forming apparatus 500 , and the height of the ribs 41 is set to a height which does not hinder sheet discharge.
- the ribs 41 prevent the sheet from sticking to the cover 40 due to the air flow drawn upstream in the Y direction during the sheet ejection.
- the cover 40 is made of a transparent or translucent material, such as plastic, to ensure that the ejected sheet is visible and make the air filter 100 as a whole appear smaller.
- FIG. 7 illustrates the image forming apparatus 500 in which the first cover 512 and the second cover 513 are closed.
- FIG. 8 illustrates the image forming apparatus 500 with the first cover 512 opened.
- FIG. 9 illustrates the image forming apparatus 500 with the second cover 513 opened.
- the cover 40 is designed not to interfere with the first cover 512 .
- the open state is a state in which the interior is not closed and includes not only a state in which the first cover 512 is fully opened but also a state in which the first cover 512 is slightly opened.
- Opening of the first cover 512 enables maintenance and replacement of a toner cartridge in the image forming apparatus body 510 and removal of a sheet when a paper jam occurs, that is, jam processing.
- the above-described arrangement of the air filter 100 does not hamper replacement of consumables and clearance of paper jams when the image forming apparatus changes from the state illustrated in FIG. 7 to the state illustrated in FIG. 8 .
- the housing 10 is disposed forward of the rear end of the second cover 513 . Opening of the second cover 513 enables maintenance such as replacement of a fixing unit in the image forming apparatus body 510 and clearance of jams.
- the above-described arrangement of the air filter 100 does not hamper maintenance and jam clearance when the image forming apparatus changes from the state illustrated in FIG. 7 to the state illustrated in FIG. 9 . Additionally, the above-described arrangement of the air filter 100 does not enlarge the footprint of the image forming apparatus 500 .
- the image forming apparatus 500 forms an image on the sheet and ejects the sheet on which the image has been formed to the sheet ejection space 520 .
- odors and other substances generated inside the image forming apparatus 500 are discharged from the ejection port 511 to the outside of the image forming apparatus body 510 , and the odor and other substances are also generated from the ejected sheet.
- the fan 20 draws air containing the generated substances and passes the air through the filter 30 .
- the air filter 100 collects the generated substances.
- the purified air is exhausted to the outside through the exhaust part 12 . Since the purified air is discharged downward, the discharged air does not hit the face or body of a user.
- the arrangement of the fan 20 at the position corresponding to the central portion of the air intake part 11 in the X direction in the housing 10 enables efficient suction of the air discharged from the ejection port 511 and prevents accumulation of dust.
- an image forming apparatus including no exhaust fan discharges most of exhaust air from an ejection port.
- the cover 40 disposed above the ejection port 511 prevents the air discharged from the ejection port 511 from diffusing upward and sideward and enables efficient correction of the air discharged from the ejection port 511 .
- Odors are often generated from ejected sheets.
- the air filter 100 capable of collecting air in the sheet ejection space 520 can reduce odors from the ejected sheets.
- the air filter 100 can be mounted on an image forming apparatus that does not include an exhaust fan and a filter inside the image forming apparatus and discharges most of exhaust air from an ejection port. Even in an image forming apparatus including an exhaust fan and a filter, the exhaust air that has not passed through an exhaust fan may slightly leak from an ejection port.
- the air filter 100 can also be mounted on the image forming apparatus that requires high-performance specifications for taking measures against such exhaust air. As described above, the air filter 100 can be mounted on various image forming apparatuses and easily improve performance in filtering of the exhaust.
- the image forming apparatus such as the multifunction peripheral having a scanner 530 above the image forming apparatus body 510 has the sheet ejection space 520 in a space formed by the image forming apparatus body 510 and the scanner 530 . Therefore, the cover 40 does not need to cover the upper side and the lateral sides of the sheet ejection space 520 . Since the cover 40 is detachably attached to the housing 10 , only the housing 10 may be attached to the above-described image forming apparatus by detaching the cover 40 .
- the air filter can easily improve the performance in filtering of exhaust gas according to the standards and uses, and efficiently draw the exhaust gas from the image forming apparatus.
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017-192682 | 2017-10-02 | ||
JP2017192682A JP7000784B2 (en) | 2017-10-02 | 2017-10-02 | Air filtration device and image forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20190100045A1 US20190100045A1 (en) | 2019-04-04 |
US10518564B2 true US10518564B2 (en) | 2019-12-31 |
Family
ID=65896503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/123,097 Expired - Fee Related US10518564B2 (en) | 2017-10-02 | 2018-09-06 | Air filter and image forming apparatus incorporating same |
Country Status (2)
Country | Link |
---|---|
US (1) | US10518564B2 (en) |
JP (1) | JP7000784B2 (en) |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4693588A (en) * | 1986-04-09 | 1987-09-15 | Xerox Corporation | Thermal air curtain for a copying/printing machine |
JPH11161122A (en) | 1997-09-26 | 1999-06-18 | Hitachi Ltd | Electrophotographic device |
US6141512A (en) * | 1998-06-30 | 2000-10-31 | Canon Kabushiki Kaisha | Process cartridge having air flow path |
US20030185584A1 (en) * | 2002-03-27 | 2003-10-02 | Brother Kogyo Kabushiki Kaisha | Image forming device |
JP2003307996A (en) | 2002-02-13 | 2003-10-31 | Canon Inc | Image forming apparatus with heat exhausting means |
US7020411B2 (en) * | 2002-02-13 | 2006-03-28 | Canon Kabushiki Kaisha | Image forming apparatus with heat exhausting means for exhausting air from around a fixing unit and a delivery tray |
US20060072933A1 (en) * | 2004-09-29 | 2006-04-06 | Seiko Epson Corporation | Image forming apparatus |
US20070110469A1 (en) * | 2005-11-11 | 2007-05-17 | Fuji Xerox Co., Ltd. | Image forming apparatus |
US20070121142A1 (en) * | 2005-11-25 | 2007-05-31 | Fuji Xerox Co., Ltd. | Image forming apparatus |
US20080187349A1 (en) * | 2002-08-30 | 2008-08-07 | Brother Kogyo Kabushiki Kaisha | Exhaust system of image forming device |
JP2011107500A (en) | 2009-11-19 | 2011-06-02 | Fuji Xerox Co Ltd | Image forming apparatus and method for manufacturing image forming apparatus |
US8218157B2 (en) * | 2005-12-16 | 2012-07-10 | Fuji Xerox Co., Ltd. | Image forming apparatus |
US8488989B2 (en) * | 2010-03-08 | 2013-07-16 | Brother Kogyo Kabushiki Kaisha | Image forming device having exhaust channel for exhausting air out of the device |
JP2013190520A (en) | 2012-03-13 | 2013-09-26 | Ricoh Co Ltd | Image forming device |
JP2018091880A (en) | 2016-11-30 | 2018-06-14 | 株式会社リコー | Air filtration device |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR100547129B1 (en) * | 2003-07-04 | 2006-01-26 | 삼성전자주식회사 | Electrophotographic printer |
JP4599045B2 (en) * | 2003-09-24 | 2010-12-15 | 京セラミタ株式会社 | Image forming apparatus |
JP4923539B2 (en) * | 2005-11-25 | 2012-04-25 | 富士ゼロックス株式会社 | Image forming apparatus |
KR101831786B1 (en) * | 2010-09-17 | 2018-02-23 | 에스프린팅솔루션 주식회사 | Smell dilution unit and electrophotographic image forming apparatus having the same |
JP6136503B2 (en) * | 2013-04-15 | 2017-05-31 | 株式会社リコー | Exterior structure of image forming apparatus and image forming apparatus |
JP6572584B2 (en) * | 2015-03-25 | 2019-09-11 | コニカミノルタ株式会社 | Optional device for electric equipment and image forming apparatus |
JP6713366B2 (en) * | 2015-10-19 | 2020-06-24 | シャープ株式会社 | Sheet discharge device and image forming apparatus including the same |
-
2017
- 2017-10-02 JP JP2017192682A patent/JP7000784B2/en active Active
-
2018
- 2018-09-06 US US16/123,097 patent/US10518564B2/en not_active Expired - Fee Related
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4693588A (en) * | 1986-04-09 | 1987-09-15 | Xerox Corporation | Thermal air curtain for a copying/printing machine |
JPH11161122A (en) | 1997-09-26 | 1999-06-18 | Hitachi Ltd | Electrophotographic device |
US6141512A (en) * | 1998-06-30 | 2000-10-31 | Canon Kabushiki Kaisha | Process cartridge having air flow path |
JP2003307996A (en) | 2002-02-13 | 2003-10-31 | Canon Inc | Image forming apparatus with heat exhausting means |
US7020411B2 (en) * | 2002-02-13 | 2006-03-28 | Canon Kabushiki Kaisha | Image forming apparatus with heat exhausting means for exhausting air from around a fixing unit and a delivery tray |
US20030185584A1 (en) * | 2002-03-27 | 2003-10-02 | Brother Kogyo Kabushiki Kaisha | Image forming device |
US20080187349A1 (en) * | 2002-08-30 | 2008-08-07 | Brother Kogyo Kabushiki Kaisha | Exhaust system of image forming device |
US20060072933A1 (en) * | 2004-09-29 | 2006-04-06 | Seiko Epson Corporation | Image forming apparatus |
US20070110469A1 (en) * | 2005-11-11 | 2007-05-17 | Fuji Xerox Co., Ltd. | Image forming apparatus |
JP2007156418A (en) | 2005-11-11 | 2007-06-21 | Fuji Xerox Co Ltd | Image forming apparatus |
US20070121142A1 (en) * | 2005-11-25 | 2007-05-31 | Fuji Xerox Co., Ltd. | Image forming apparatus |
JP2007171913A (en) | 2005-11-25 | 2007-07-05 | Fuji Xerox Co Ltd | Image forming apparatus |
US8218157B2 (en) * | 2005-12-16 | 2012-07-10 | Fuji Xerox Co., Ltd. | Image forming apparatus |
JP2011107500A (en) | 2009-11-19 | 2011-06-02 | Fuji Xerox Co Ltd | Image forming apparatus and method for manufacturing image forming apparatus |
US8488989B2 (en) * | 2010-03-08 | 2013-07-16 | Brother Kogyo Kabushiki Kaisha | Image forming device having exhaust channel for exhausting air out of the device |
JP2013190520A (en) | 2012-03-13 | 2013-09-26 | Ricoh Co Ltd | Image forming device |
JP2018091880A (en) | 2016-11-30 | 2018-06-14 | 株式会社リコー | Air filtration device |
Also Published As
Publication number | Publication date |
---|---|
JP7000784B2 (en) | 2022-01-19 |
JP2019066687A (en) | 2019-04-25 |
US20190100045A1 (en) | 2019-04-04 |
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